Comments (2)
How elixir impl in macro.ex
# Expand possible macro require invocation
defp do_expand_once({{:., _, [left, right]}, meta, args} = original, env) when is_atom(right) do
{receiver, _} = do_expand_once(left, env)
case is_atom(receiver) do
false ->
{original, false}
true ->
expand = :elixir_dispatch.expand_require(meta, receiver, {right, length(args)}, args, env)
case expand do
{:ok, receiver, quoted} ->
next = :elixir_module.next_counter(env.module)
{:elixir_quote.linify_with_context_counter(0, {receiver, next}, quoted), true}
:error ->
{original, false}
end
end
end
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done.
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Related Issues (10)
- macro error and exception handle HOT 1
- Contributing to syntax tools? HOT 10
- macro expand order
- add attrs for -use_macro HOT 1
- unique var name generate in quote support. HOT 4
- add -export_macro attribute HOT 1
- more powerful astranaut:replace_from_nth(Nodes, N, Forms, Options) HOT 1
- case clause match pattern works like elixir
- add strict mode
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